tmSymbolUpdater.h

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/*******************************************************************************
** Copyright (c) 2001 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: tmSymbolUpdater.h,v $ $Revision: 1.48 $ $State: Exp $
*******************************************************************************/


#ifndef TMSYMBOLUPDATER_H_
#define TMSYMBOLUPDATER_H_

#include <QtCore/QHash>
#include <vector>

class DtViewDriver;
class DtTMArea;
class DtTMSymbolUpdater;
class DtNameLabelSymbol;
class DtEnvironmentalModelData;
class DtTMMapArea;
class QPolygon;
class QPoint;
class DtSymbol;
class DtTMDisplayOptions;
class DtTMViewportExtents;
class DtModelData;
class DtPoint;
class DtVector;
class DtArchivableObject;

typedef void (*DtSymbolUpdatorCallback)(const DtTMSymbolUpdater* mapper, DtSymbol& s, const DtModelData& data, void* usr);
typedef void (*DtPostSymbolUpdateCallback)(const DtTMSymbolUpdater*, DtSymbol&, const DtModelData&, void* usr);

#include "tmqt/tmqtDefines.h"
class DT_DLL_tmqt DtUpdateCallbackInfo
{
public:
   DtUpdateCallbackInfo() : myUserData(NULL), myCallback(NULL) {};
   DtUpdateCallbackInfo(DtSymbolUpdatorCallback fcn, void *usr);
   DtUpdateCallbackInfo(const DtUpdateCallbackInfo& orig) :
      myCallback(orig.myCallback), myUserData(orig.myUserData) {};

   virtual ~DtUpdateCallbackInfo();
   
   virtual DtSymbolUpdatorCallback callback();
   virtual void* usertoLatin1();

protected:
   DtSymbolUpdatorCallback myCallback;
   void* myUserData;
};

class DT_DLL_tmqt DtPostUpdateCallbackInfo
{
public:
   DtPostUpdateCallbackInfo(int type, DtPostSymbolUpdateCallback fcn, void *usr);
   DtPostUpdateCallbackInfo(const DtPostUpdateCallbackInfo& orig) :
      myCallback(orig.myCallback), myUserData(orig.myUserData), myType(orig.myType) {};

   virtual ~DtPostUpdateCallbackInfo();
   
   virtual DtPostSymbolUpdateCallback callback();
   virtual void* usertoLatin1();
   virtual int type();

protected:
   DtPostSymbolUpdateCallback myCallback;
   void* myUserData;
   int myType;
};

typedef QVector<DtUpdateCallbackInfo> DtUpdateCallbackInfoList;

class DT_DLL_tmqt DtTMSymbolUpdater : public QObject
{
   Q_OBJECT

public:

   DtTMSymbolUpdater();

   virtual ~DtTMSymbolUpdater();

   virtual void init(DtTMArea* area);

   virtual void setViewportExtents(const DtTMViewportExtents *);
   virtual const DtTMViewportExtents* viewportExtents() const;

   virtual void setDisplayOptions(const DtTMDisplayOptions* o);
   virtual const DtTMDisplayOptions* displayOptions() const;

   virtual void updateSymbol(DtSymbol&, const DtModelData&);

   virtual void setViewDriver(const DtViewDriver* driver);

   virtual void setResetLabelPositions(bool b);

   virtual int defaultLineWidth(const DtEnvironmentalModelData& d,
      const DtTMDisplayOptions* opt) const;
  
   virtual void addSymbolUpdateCallback(QString type, DtPostSymbolUpdateCallback fcn, void* usr = NULL);
   virtual void removeSymbolUpdateCallback(QString type, DtSymbolUpdatorCallback fcn);

   virtual void addPostUpdateCallback(int iType, DtPostSymbolUpdateCallback fcn, void* usr);

   virtual void removePostUpdateCallback(int iType, DtPostSymbolUpdateCallback fcn, void* usr);

   virtual void removeAllPostUpdateCallbacks();

   virtual QPolygon* createScreenPtsFromDB(const QVector<DtPoint>* dbPoints) const;

   virtual QPolygon* createScreenPtsFromDB(const QList<DtVector>* dbPoints) const;

   virtual QPoint createScreenPtFromDB(const DtPoint& dbPoint) const;

   virtual void setLocationDataFromModelData( DtSymbol& s, QVector<DtPoint> dbPoints ) const;

   virtual bool processUpdateOptions(DtNameLabelSymbol* nls, const DtModelData& d, void* usr) const;

   virtual bool updateVerticies(DtNameLabelSymbol* nls, QVector<DtPoint>* points) const;

   virtual void updateLocalControlData(DtSymbol& s, const DtEnvironmentalModelData& d, void* usr) const;

   virtual void updateGenericPosition(DtSymbol& s,const DtModelData& d) const;

protected:

   virtual bool updateOptions(DtNameLabelSymbol* nls, const DtTMDisplayOptions* opt,
      const DtModelData& d, void* usr) const;

   virtual bool updateOptionsFromDisplayOptions(DtNameLabelSymbol* nls, const DtModelData& d, void* usr) const;

   virtual bool needsOptionUpdate(DtSymbol*) const;
   virtual bool needsOptionUpdate(const DtModelData&) const;

   virtual void updateOptionCache(DtSymbol*) const;

   virtual void invokePostUpdateCallbacks(DtSymbol&, const DtModelData&);

   virtual void updateSymbol(DtNameLabelSymbol* es, const DtEnvironmentalModelData& d, void* usr) const;

   virtual void updateNameLabel(DtNameLabelSymbol* pes, const DtModelData& d, void* usr) const;

   virtual void updateLabelLabel(DtNameLabelSymbol* pes, const DtModelData& d, void* usr) const;

   virtual void updateLayerLabel(DtNameLabelSymbol* pes, const DtModelData& d, void* usr) const;

   virtual bool updateVerticies(DtNameLabelSymbol* pes,
                                const DtEnvironmentalModelData& d,
                                void* usr) const;

   virtual bool updateVerticies(DtNameLabelSymbol* nls, DtSymbol* s,
      const DtModelData& d, void* usr) const;

   virtual bool updateVerticies(DtNameLabelSymbol* nls, DtSymbol* s,
      const QVector<DtPoint>& pnts, const DtModelData& d, void* usr) const;


   virtual void updateColorOptions(DtNameLabelSymbol* nls, const DtTMDisplayOptions* pdo,
      const DtEnvironmentalModelData& d, void* usr) const;

   virtual bool isValidUpdatableData(const DtModelData& d) const;

   virtual void setLineEditable(const DtModelData& d, DtNameLabelSymbol* nls) const;

   virtual bool terrainLoaded() const;

public:

   static DtTMSymbolUpdater* create();

   static void updateGenericPositionCb(const DtTMSymbolUpdater* updater, DtSymbol& s, 
      const DtModelData& d, void* usr=0);

   static void updateLocalControlDataCb(const DtTMSymbolUpdater* updater, DtSymbol& s, 
      const DtModelData& d, void* usr);

   static void updateNameLabelCb(const DtTMSymbolUpdater* updater, DtSymbol& s, 
      const DtModelData& d, void* usr);

   static void updateLabelLabelCb(const DtTMSymbolUpdater* updater, DtSymbol& s, 
      const DtModelData& d, void* usr);

   static void updateLayerLabelCb(const DtTMSymbolUpdater* updater, DtSymbol& s, 
      const DtModelData& d, void* usr);

protected:

   const DtTMViewportExtents * myViewportExtents;
   const DtTMDisplayOptions* myTMDisplayOptions;
   const DtTMArea* myArea;
   const DtTMMapArea* myMapArea;   
   QHash<QString, DtUpdateCallbackInfoList> myUpdators;
   const DtViewDriver* myViewDriver;
   bool myResetLabelPositions;
   QList<DtPostUpdateCallbackInfo> myPostUpdateCallbacks;
};

#endif //TMSYMBOLUPDATER_H_